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Finding the Fourth Proportional to 174,115.72, 240,155.28 and 159,820.96

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Solution

The fourth proportional to 174,115.72, 240,155.28 and 159,820.96 is: 220,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,115.72 : 240,155.28 = 159,820.96 : x
  2. Step 2: Convert to fraction form
    174,115.72/240,155.28 = 159,820.96/x
  3. Step 3: Cross multiply
    174,115.72x = 240,155.28 × 159,820.96
  4. Step 4: Simplify right side
    174,115.72x = 38,381,847,398.67
  5. Step 5: Solve for x
    x = 38,381,847,398.67/174,115.72
  6. Step 6: Final answer
    x = 220,438.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.